declination

名词 declination:

1. a condition inferior to an earlier condition; a gradual falling off from a better state
   同义词：decline
2. a downward slope or bend
   同义词：descent, declivity, fall, decline, declension, downslope
3. (astronomy) the angular distance of a celestial body north or south of the celestial equator; expressed in degrees; used with right ascension to specify positions on the celestial sphere
   同义词：celestial latitude, dec
4. a polite refusal of an invitation
   同义词：regrets

dec.li.na.tion

n.Abbr. dec.（名词）缩写 dec.
A sloping or bending downward.
下倾：朝下的倾斜或弯曲
A falling off, especially from prosperity or vigor; a decline.
衰退：尤指从繁荣或精力充沛的状况衰弱下来；衰落
A deviation, as from a specific direction or standard.
偏离：如从某一特定方向或标准等的偏离
A refusal to accept.
婉拒，谢绝
Magnetic declination.
磁偏角，磁偏差
Astronomy The angular distance to a point on a celestial object, measured north or south from the celestial equator.
【天文学】 赤纬：到达某天体一点的角距，从天体赤道向北或向南测量得出

来源：
Middle English declinacioun
中古英语 declinacioun
from Old French declination
源自 古法语 declination
from Latin dôclon3tiô dôclon3tiôn-
源自 拉丁语 dôclon3tiô dôclon3tiôn-
from dôclon3tus [past participle of] dôclon3re [to turn away] * see decline
源自 dôclon3tus [] dôclon3re的过去分词 [赶走，解散] *参见 decline

【引伸】
dec.lina.tional
adj.（形容词）